ICSC 0811 - ZINC CHROMATE

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ZINC CHROMATE

ICSC: 0811
_{April 2000}

Chromium zinc oxide
Zinc tetraoxychromate
Chromic acid, zinc salt (1:1)

CAS No: 13530-65-9
RTECS No: GB3290000
UN No: 3288
EC No: 024-007-00-3

ZnCrO₄
Molecular mass: 181.4

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
Inhalation	Cough.	Local exhaust or breathing protection.	Fresh air, rest.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness.	Safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion	Abdominal pain. Diarrhoea. Vomiting.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. (Extra personal protection: P3 filter respirator for toxic particles).	T Symbol N Symbol R: 45-22-43-50/53 S: 53-45-60-61 Note: A; E UN Hazard Class: 6.1 UN Pack Group: II	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	STORAGE
Transport Emergency Card: TEC (R)-61G64b	Well closed. Separated from food and feedstuffs.

IMPORTANT DATA

Physical State; Appearance
YELLOW CRYSTALLINE POWDER.

Occupational exposure limits
TLV (as Cr): 0.01 mg/m³ (as TWA) A1 (ACGIH 1999).
MAK: class III.1.Sh (1999)

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of short-term exposure
Inhalation of dust may cause irritation.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma. Repeated or prolonged exposure may cause nasal ulceration. This substance is carcinogenic to humans.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Melting point: 316°C Density: 3.4 g/cm³ Solubility in water: none	The substance is very toxic to aquatic organisms.

NOTES

The term zinc chromate is also used to refer to a wide range of commercial zinc and zinc potassium chromates. It has several CAS numbers.
Depending on the degree of exposure, periodic medical examination is indicated.
Pigment Yellow 36 and Buttercup Yellow are trade names.
Do NOT take working clothes home.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2002

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Updated by AS. Approved by EC. Last update: 22.03.2002